<div class="modal-content">
  <div class="modal-header">
    <h4 class="modal-title" >批量年级确认</h4>
    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
      <span aria-hidden="true">×</span>
    </button>
  </div>
  <div class="modal-body">
      <div class="container">
          <table cellpadding="10px 5px">
              <tr>
                  <td align="right">年级:</td>
                  <td style="width: 500px;">
                      <select id="my_select" class="selectpicker" multiple data-container="body" data-hide-disabled="true" data-actions-box="true" ng-model="form.id">
                          <option ng-repeat="grade in gradeList" value="{{grade.id}}">{{grade.name}}</option>
                      </select>
                  </td>
              </tr>
          </table>
      </div>
  </div>
  <div class="modal-footer">
      <button ng-click="rollback()" type="button" class="btn btn-secondary" style="display: none;">回滚</button>
      <button ng-click="affirm()" type="button" class="btn btn-primary">确认</button>
  </div>
</div>